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author | Sukumar Ghorai <s-ghorai@ti.com> | 2010-07-09 14:27:47 +0000 |
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committer | Tony Lindgren <tony@atomide.com> | 2010-08-02 15:43:29 +0300 |
commit | 13d6b73cf189945b7d20e749f9034329d227be6a (patch) | |
tree | eb100f7b4df6a6dd39e1c632d7c96f1e110baf33 /arch/arm/mach-omap2/board-sdp-flash.c | |
parent | f450d86790ebf72ac93c7ea5addd6fa278aae64c (diff) | |
download | talos-op-linux-13d6b73cf189945b7d20e749f9034329d227be6a.tar.gz talos-op-linux-13d6b73cf189945b7d20e749f9034329d227be6a.zip |
omap3 flash: rename board-sdp-flash.c to be use by other boards
rename board-sdp-flash.c(board-flash.c) and board-sdp.h(board-flash.h) to
used by other board e.g. zoom
Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-sdp-flash.c')
-rw-r--r-- | arch/arm/mach-omap2/board-sdp-flash.c | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/arch/arm/mach-omap2/board-sdp-flash.c b/arch/arm/mach-omap2/board-sdp-flash.c deleted file mode 100644 index 2638c834dec2..000000000000 --- a/arch/arm/mach-omap2/board-sdp-flash.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * board-sdp-flash.c - * Modified from mach-omap2/board-3430sdp-flash.c - * - * Copyright (C) 2009 Nokia Corporation - * Copyright (C) 2009 Texas Instruments - * - * Vimal Singh <vimalsingh@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/mtd/physmap.h> -#include <linux/io.h> - -#include <plat/gpmc.h> -#include <plat/nand.h> -#include <plat/onenand.h> -#include <plat/tc.h> -#include <mach/board-sdp.h> - -#define REG_FPGA_REV 0x10 -#define REG_FPGA_DIP_SWITCH_INPUT2 0x60 -#define MAX_SUPPORTED_GPMC_CONFIG 3 - -#define DEBUG_BASE 0x08000000 /* debug board */ - -#define PDC_NOR 1 -#define PDC_NAND 2 -#define PDC_ONENAND 3 -#define DBG_MPDB 4 - -/* various memory sizes */ -#define FLASH_SIZE_SDPV1 SZ_64M /* NOR flash (64 Meg aligned) */ -#define FLASH_SIZE_SDPV2 SZ_128M /* NOR flash (256 Meg aligned) */ - -/* - * SDP3430 V2 Board CS organization - * Different from SDP3430 V1. Now 4 switches used to specify CS - * - * See also the Switch S8 settings in the comments. - * - * REVISIT: Add support for 2430 SDP - */ -static const unsigned char chip_sel_sdp[][GPMC_CS_NUM] = { - {PDC_NOR, PDC_NAND, PDC_ONENAND, DBG_MPDB, 0, 0, 0, 0}, /* S8:1111 */ - {PDC_ONENAND, PDC_NAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1110 */ - {PDC_NAND, PDC_ONENAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1101 */ -}; - -static struct physmap_flash_data sdp_nor_data = { - .width = 2, -}; - -static struct resource sdp_nor_resource = { - .flags = IORESOURCE_MEM, -}; - -static struct platform_device sdp_nor_device = { - .name = "physmap-flash", - .id = 0, - .dev = { - .platform_data = &sdp_nor_data, - }, - .num_resources = 1, - .resource = &sdp_nor_resource, -}; - -static void -__init board_nor_init(struct flash_partitions sdp_nor_parts, u8 cs) -{ - int err; - - sdp_nor_data.parts = sdp_nor_parts.parts; - sdp_nor_data.nr_parts = sdp_nor_parts.nr_parts; - - /* Configure start address and size of NOR device */ - if (omap_rev() >= OMAP3430_REV_ES1_0) { - err = gpmc_cs_request(cs, FLASH_SIZE_SDPV2 - 1, - (unsigned long *)&sdp_nor_resource.start); - sdp_nor_resource.end = sdp_nor_resource.start - + FLASH_SIZE_SDPV2 - 1; - } else { - err = gpmc_cs_request(cs, FLASH_SIZE_SDPV1 - 1, - (unsigned long *)&sdp_nor_resource.start); - sdp_nor_resource.end = sdp_nor_resource.start - + FLASH_SIZE_SDPV1 - 1; - } - if (err < 0) { - printk(KERN_ERR "NOR: Can't request GPMC CS\n"); - return; - } - if (platform_device_register(&sdp_nor_device) < 0) - printk(KERN_ERR "Unable to register NOR device\n"); -} - -#if defined(CONFIG_MTD_ONENAND_OMAP2) || \ - defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) -static struct omap_onenand_platform_data board_onenand_data = { - .dma_channel = -1, /* disable DMA in OMAP OneNAND driver */ -}; - -static void -__init board_onenand_init(struct flash_partitions sdp_onenand_parts, u8 cs) -{ - board_onenand_data.cs = cs; - board_onenand_data.parts = sdp_onenand_parts.parts; - board_onenand_data.nr_parts = sdp_onenand_parts.nr_parts; - - gpmc_onenand_init(&board_onenand_data); -} -#else -static void -__init board_onenand_init(struct flash_partitions sdp_onenand_parts, u8 cs) -{ -} -#endif /* CONFIG_MTD_ONENAND_OMAP2 || CONFIG_MTD_ONENAND_OMAP2_MODULE */ - -#if defined(CONFIG_MTD_NAND_OMAP2) || \ - defined(CONFIG_MTD_NAND_OMAP2_MODULE) - -/* Note that all values in this struct are in nanoseconds */ -static struct gpmc_timings nand_timings = { - - .sync_clk = 0, - - .cs_on = 0, - .cs_rd_off = 36, - .cs_wr_off = 36, - - .adv_on = 6, - .adv_rd_off = 24, - .adv_wr_off = 36, - - .we_off = 30, - .oe_off = 48, - - .access = 54, - .rd_cycle = 72, - .wr_cycle = 72, - - .wr_access = 30, - .wr_data_mux_bus = 0, -}; - -static struct omap_nand_platform_data sdp_nand_data = { - .nand_setup = NULL, - .gpmc_t = &nand_timings, - .dma_channel = -1, /* disable DMA in OMAP NAND driver */ - .dev_ready = NULL, - .devsize = 0, /* '0' for 8-bit, '1' for 16-bit device */ -}; - -static void -__init board_nand_init(struct flash_partitions sdp_nand_parts, u8 cs) -{ - sdp_nand_data.cs = cs; - sdp_nand_data.parts = sdp_nand_parts.parts; - sdp_nand_data.nr_parts = sdp_nand_parts.nr_parts; - - gpmc_nand_init(&sdp_nand_data); -} -#else -static void -__init board_nand_init(struct flash_partitions sdp_nand_parts, u8 cs) -{ -} -#endif /* CONFIG_MTD_NAND_OMAP2 || CONFIG_MTD_NAND_OMAP2_MODULE */ - -/** - * get_gpmc0_type - Reads the FPGA DIP_SWITCH_INPUT_REGISTER2 to get - * the various cs values. - */ -static u8 get_gpmc0_type(void) -{ - u8 cs = 0; - void __iomem *fpga_map_addr; - - fpga_map_addr = ioremap(DEBUG_BASE, 4096); - if (!fpga_map_addr) - return -ENOMEM; - - if (!(__raw_readw(fpga_map_addr + REG_FPGA_REV))) - /* we dont have an DEBUG FPGA??? */ - /* Depend on #defines!! default to strata boot return param */ - goto unmap; - - /* S8-DIP-OFF = 1, S8-DIP-ON = 0 */ - cs = __raw_readw(fpga_map_addr + REG_FPGA_DIP_SWITCH_INPUT2) & 0xf; - - /* ES2.0 SDP's onwards 4 dip switches are provided for CS */ - if (omap_rev() >= OMAP3430_REV_ES1_0) - /* change (S8-1:4=DS-2:0) to (S8-4:1=DS-2:0) */ - cs = ((cs & 8) >> 3) | ((cs & 4) >> 1) | - ((cs & 2) << 1) | ((cs & 1) << 3); - else - /* change (S8-1:3=DS-2:0) to (S8-3:1=DS-2:0) */ - cs = ((cs & 4) >> 2) | (cs & 2) | ((cs & 1) << 2); -unmap: - iounmap(fpga_map_addr); - return cs; -} - -/** - * sdp3430_flash_init - Identify devices connected to GPMC and register. - * - * @return - void. - */ -void __init sdp_flash_init(struct flash_partitions sdp_partition_info[]) -{ - u8 cs = 0; - u8 norcs = GPMC_CS_NUM + 1; - u8 nandcs = GPMC_CS_NUM + 1; - u8 onenandcs = GPMC_CS_NUM + 1; - u8 idx; - unsigned char *config_sel = NULL; - - /* REVISIT: Is this return correct idx for 2430 SDP? - * for which cs configuration matches for 2430 SDP? - */ - idx = get_gpmc0_type(); - if (idx >= MAX_SUPPORTED_GPMC_CONFIG) { - printk(KERN_ERR "%s: Invalid chip select: %d\n", __func__, cs); - return; - } - config_sel = (unsigned char *)(chip_sel_sdp[idx]); - - while (cs < GPMC_CS_NUM) { - switch (config_sel[cs]) { - case PDC_NOR: - if (norcs > GPMC_CS_NUM) - norcs = cs; - break; - case PDC_NAND: - if (nandcs > GPMC_CS_NUM) - nandcs = cs; - break; - case PDC_ONENAND: - if (onenandcs > GPMC_CS_NUM) - onenandcs = cs; - break; - }; - cs++; - } - - if (norcs > GPMC_CS_NUM) - printk(KERN_INFO "NOR: Unable to find configuration " - "in GPMC\n"); - else - board_nor_init(sdp_partition_info[0], norcs); - - if (onenandcs > GPMC_CS_NUM) - printk(KERN_INFO "OneNAND: Unable to find configuration " - "in GPMC\n"); - else - board_onenand_init(sdp_partition_info[1], onenandcs); - - if (nandcs > GPMC_CS_NUM) - printk(KERN_INFO "NAND: Unable to find configuration " - "in GPMC\n"); - else - board_nand_init(sdp_partition_info[2], nandcs); -} |